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An infinite line charge produces a field...

An infinite line charge produces a field of `7.182 xx 10^(8) N//C` at distance of 2 cm. the linear charge density is

A

`7.27xx10^(-4)C//m`

B

`7.98xx10^(-4)C//m`

C

`7.11xx10^(-4)C//m`

D

`7.04xx10^(-4)C//m`

Text Solution

Verified by Experts

The correct Answer is:
B
`E=lamda/(2piepsilon_0r)implies lamda= (7.182 xx10^8 xx2 xx10^(-2))/(2xx9 xx10^9)`
`= 7.98 xx10^(-4)C//m`
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